Dr Yani Najman

Senior Lecturer

Research Overview

Research:

I am interested in using the detrital record as an archive of paleotectonics, climate and erosion. I utilise emerging and established provenance techniques, in particular isotopic fingerprinting and detrital thermochronology, to advance the detrital approach and apply it to novel geological problems. In orogenic settings, my work is focused on the Himalaya, Tibet and Pamir. Here I use the sedimentary archive of material eroded from the mountain belt and preserved in adjacent sedimentary basins to better understand the inter-relationship between tectonics, erosion and sedimentation, to reconstruct hinterland tectonics and investigate mountain-building processes, and to constrain the proposed influence of Himalayan erosion on global climate and ocean geochemistry. My recent work extends the detrital approach to extensional settings, where I am determining the provenance of the Nile delta in order to reconstruct its palaeodrainage, and the relationship between its hydrology, rift tectonics, and ocean-atmosphere interactions.

Please see my web page for more details of my research: http://www.lancs.ac.uk/staff/najman

Teaching:

I teach on the following undergraduate courses:

  • Geological methods
  • Environmental field course
  • Practical geographical skills
  • Environmental issues for the 21st century

Roles:

  • Director of Studies for the MA / MSc in Environment and Development.
  • LEC liaison for student societies Envirosoc, Ecosoc, Biolsoc and SLUGS (Geography).
  • Administrator for LEC’s “Get a life” fund for students’ personal extra-curricular activities.
  • Theme leader for the Earth Science Research Group

Sediment recycling at convergent plate margins (Indo-Burman Ranges and Andaman-Nicobar Ridge)
Garzanti, E., Limonta, M., Resentini, A., Bandopadhyay, P.C., Najman, Y., Andò, S., Vezzoli, G. 08/2013 In: Earth-Science Reviews. 123, p. 113-132. 20 p.
Journal article

U-Pb LA-(MC)-ICP-MS dating of rutile: new reference materials and applications to sedimentary provenance
Bracciali, L., Parrish, R., Horstwood, M.S.A., Condon, D., Najman, Y. 6/06/2013 In: Chemical Geology. 347, p. 82-101. 20 p.
Journal article

Weathering geochemistry and Sr-Nd fingerprints of equatorial upper Nile and Congo muds
Garzanti, E., Padoan, M., Setti, M., Najman, Y., Peruta, L., Villa, I.M. 02/2013 In: Geochemistry, Geophysics, Geosystems. 14, 2, p. 292-316. 25 p.
Journal article

The record of Himalayan erosion preserved in the sedimentary rocks of the Hatia Trough of the Bengal Basin and the Chittagong Hill Tracts, Bangladesh
Najman, Y., Allen, R., Willett, E., Carter, A., Barford, D., Garzanti, E., Wijbrans, J., Bickle, M., Vezzoli, G., Ando, S., Oliver, G., Uddin, M. 10/2012 In: Basin Research. 24, 5, p. 499-519. 21 p.
Journal article

Constraints to the timing of India-Eurasia collision; a re-evaluation of evidence from the Indus Basin sedimentary rocks of the Indus-Tsangpo Suture Zone, Ladakh, India
Henderson, A., Najman, Y., Parrish, R., Mark, D., Foster, G. 06/2011 In: Earth-Science Reviews. 106, 3-4, p. 265-292. 28 p.
Journal article

Geology of the Cenozoic Indus Basin sedimentary rocks : paleoenvironmental interpretation of sedimentation from the western Himalaya during the early phases of India-Eurasia collision.
Henderson, A.L., Najman, Y., Parrish, R., BouDagher‐Fadel, M., Barford, D., Garzanti, E., Andò, S. 24/12/2010 In: Tectonics. 29, TC6015
Journal article

Timing of India-Asia collision: Geological, biostratigraphic, and palaeomagnetic constraints
Najman, Y., Appel, E., Boudagher-Fadel, M., Bown, P., Carter, A., Garzanti, E., Godin, L., Han, J., Liebke, U., Oliver, G., Parrish, R., Vezzoli, G. 21/12/2010 In: Journal of Geophysical Research: Solid Earth. 115, n/a, 18 p.
Journal article

Mineralogical and chemical variability of fluvial sands. 1 Bedload sand (Ganga-Brahmaputra. Bangladesh).
Garzanti, E., Andò, S., France-Lanord, C., Vezzoli, G., Censi, P., Galy, V., Najman, Y. 1/11/2010 In: Earth and Planetary Science Letters. 299, 3-4, p. 368-381. 14 p.
Journal article

Locating earliest records of orogenesis in the western Himalaya : evidence from the paleogene sediments in the Iranian Makran and Pakistan Katawaz basin.
Carter, A., Najman, Y., Bahroudi, A., Bown, P., Garzanti, E., Lawrence, R.D. 09/2010 In: Geology. 38, 9, p. 807-810. 4 p.
Journal article

Testing the application of in-situ Sm-Nd isotopic analysis on detrital apatites: a provenance tool for constraining the timing of India-Eurasia collision.
Henderson, A.L., Foster, G., Najman, Y. 15/08/2010 In: Earth and Planetary Science Letters. 297, 1-2, p. 42-49. 8 p.
Journal article

Reconstructing the exhumation history of the Lesser Himalaya, Northern, India, from a multi-technique provenance study of the foreland basin Siwalik Group.
Najman, Y., Bickle, M., Garzanti, E., Pringle, M., Barford, D., Brozovic, N., Burbank, D., Andò, S. 30/10/2009 In: Tectonics. 28, TC5018
Journal article

The paleogene record of Himalayan erosion : Bengal Basin, Bangladesh.
Najman, Y., Bickle, M., Boudagher-Fadel, M., Carter, A., Garzanti, E., Paul, M., Wijbrans, J., Willett, E., Oliver, G., Parrish, R., Akhter, H., Allen, R., Ando, S., Chisty, E., Reisberg, L., Vezzoli, G. 30/08/2008 In: Earth and Planetary Science Letters. 273, 1, p. 1-14. 14 p.
Journal article

New constraints on the sedimentation and uplift history of the Andaman-Nicobar accretionary prism, South Andaman Island.
Allen, R., Carter, A., Najman, Y., Bandopadhyay, P., Chapman, H., Bickle, M., Garzanti, E., Vezzoli, G., Ando, S., Foster, G. 2008 In: Formation and Applications of the Sedimentary Record in Arc Collision Zones. Boulder, Colo. : Geological Society of America p. 223-255. 33 p. ISBN: 9780813724362.
Chapter

Provenance of the Tertiary sedimentary rocks of the Indo- Burman Ranges, Burma (Myanmar): Burman arc or Himalayan-derived?
Allen, R., Najman, Y., Carter, A., Barford, D., Bickle, M., Chapman, H., Garzanti, E., Ando, S., Vezzoli, G., Parrish, R. 2008 In: Journal of the Geological Society. 165, p. 1045-1058. 14 p.
Journal article

Comment on 'Biochronological continuity of the Paleogene sediments of the Himalayan foreland basin: paleontological and other evidences' by S. B. Bhatia and O.N. Bhargava
Najman, Y. 2007 In: Journal of Asian Earth Sciences. 30, p. 417-421. 5 p.
Journal article

Runoff processes in Southeast Asia: role of soil, regolith and rock type.
Chappell, N.A., Sherlock, M., Bidin, K., Macdonald, R., Najman, Y., Davies, G. 2007 In: Forest Environments in the Mekong River Basin. Tokyo : Springer Verlag p. 3-23. 21 p. ISBN: 978 4 431 46500 3.
Chapter

Tectonic evolution of the Himalaya constrained by detrital 40Ar–39Ar, Sm–Nd and petrographic data from the Siwalik foreland basin succession, SW Nepal
Szulc, A., Najman, Y., Sinclair, H., Pringle, M., Bickle, M., Chapman, H., Garzanti, E., Ando, S., Huyghe, P., Mugnier, J., Ojha, T., DeCelles, P. 12/2006 In: Basin Research. 18, 4, p. 375-391. 17 p.
Journal article

The detrital record of orogenesis: A review of approaches and techniques used in the Himalayan sedimentary basins
Najman, Y. 12/2006 In: Earth-Science Reviews. 74, 1-2, p. 1-72. 72 p.
Journal article

Provenance of early foreland basin sediments, Nepal: constraints to the timing and diachroneity of early Himalayan orogenesis.
Najman, Y., Carter, A., Decelles, P., Oliver, G. 1/04/2005 In: Geology. 33, 4, p. 309-312. 4 p.
Journal article

Detrital geochronology, thermochronology and geochemistry of Cretaceous-Miocene strata of Nepal: implications for timing and diachroneity of initial Himalayan orogenesis.
DeCelles, P., Gehrels, G., Najman, Y., Martin, A.J., Carter, A., Garzanti, E. 15/11/2004 In: Earth and Planetary Science Letters. 227, 3-4, p. 313-330. 18 p.
Journal article

Evolution of the Himalayan foreland basin, NW India
Najman, Y., Johnson, C., White, N.M., Oliver, G. 2004 In: Basin Research. 16, p. 1-24. 24 p.
Journal article

Early-Mid Miocene palaeodrainage and tectonics in the Pakistan Himalaya.
Najman, Y., Bickle, M., Garzanti, E., Pringle, M. 1/10/2003 In: Geological Society of America Bulletin. 115, 10, p. 1265-1277. 13 p.
Journal article

Temporal Evolution of Boron Flux in the Honshu and Izu Arcs measured by Ion Microprobe from the forearc tephra record.
Clift, P.D., Layne, G.D., Najman, Y., Kopf, A., Shimizu, N., Hunt, J. 07/2003 In: Journal of Petrology. 44, 7, p. 1211-1236. 26 p.
Journal article

The tephrochronological potential of the Plio-Pleistocene volcaniclastic record in the Japan Trench
Hunt, J., Najman, Y. 2003 In: Proceedings of the Ocean Drilling Program Scientific Results.
Chapter

Constraints on the exhumation and erosion of the High Himalayan Slab, NW India, from foreland basin deposits.
White, N.M., Pringle, M., Garzanti, E., Bickle, M., Najman, Y., Chapman, H. 30/01/2002 In: Earth and Planetary Science Letters. 195, 1-2, p. 29-44. 16 p.
Journal article

A reinterpretation of the Balakot Formation; implications for the tectonic evolution of the NW Himalaya, Pakistan
Najman, Y., Pringle, M., Godin, L., Oliver, G. 2002 In: Tectonics. 21, 5, p. 1045.
Journal article

Dating of the oldest continental foreland basin sediments in the Himalayan foreland basin.
Najman, Y., Godin, L., Oliver, G., Pringle, M. 8/03/2001 In: Nature. 410, p. 194-197. 4 p.
Journal article

Metamorphism and exhumation of the NW Himalaya constrained by U-Th-Pb analyses of detrital monazite grains from early foreland basin sediments
White, N.M., Parrish, R., Bickle, M., Najman, Y., Burbank, D., Maithani, A. 2001 In: Journal of the Geological Society. 158, p. 625-635. 11 p.
Journal article

An integrated approach to provenance studies: reconstructing early Himalayan paleogeography and tectonic evolution from Tertiary foredeep sediments, N. India
Najman, Y., Garzanti, E. 2000 In: Geological Society of America Bulletin. 112, p. 435-449. 15 p.
Journal article

Early Himalayan exhumation: isotopic constraints from the Indian foreland basin
Najman, Y., Bickle, M., Chapman, H. 2000 In: Terra Nova. 12, p. 28-34. 7 p.
Journal article

West Pacific Geophysical Observatories
Sacks, I.S., Suyehiro, K., Acton, G.D., Najman, Y. 2000 In: Proceedings of the Ocean Drilling Program, Initial Reports volume.
Chapter

Laser 40Ar/39Ar dating of single detrital muscovite grains from early foreland basin sediments in India: Implications for early Himalayan evolution
Najman, Y., Pringle, M., Johnson, M.R.W., Robertson, A.H.F., Wijbrans, J.R. 1997 In: Geology. 25, p. 535-538. 4 p.
Journal article

Palaeomagnetic dating of the earliest continental Himalayan foredeep sediments: Implications for Himalayan evolution
Najman, Y., Enkin, R.J., Johnson, M.R.W., Robertson, A.H.F., Baker, J. 1994 In: Earth and Planetary Science Letters. 128, p. 713-718. 6 p.
Journal article

Early stages of foreland basin evolution in the Lesser Himalaya, N. India
Najman, Y., Clift, P., Johnson, M.R.W., Robertson, A.H.F. 1993 In: Himalayan Tectonics. Geological Society of London Special Publication p. 541-558. 18 p.
Chapter